tetra-

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tetra-, before a vowel tetr-, repr. Gr. tetra-, comb. form of téttares, téttara four, as in tetrachord XVII. tetragon four-angle figure. XVII. — Gr.; whence tetragonal (-AL1) XVI. tetragrammaton Heb. word written JHVH JEHOVAH. XIV. — Gr. f. grámma, -at- letter. tetrahedron four-sided figure. XVI. — late Gr. tetralogy series of four related dramas. XVII. — Gr. tetralogíā. tetrameter (pros.) element of four measures. XVII. — late L. tetrametrus — Gr. tetrámetros. tetrastich strophe of four lines. XVI. — L. tetrastichon — Gr. tetrástikhon. tetrasyllable XVI. — Gr. tetrasúllabos.

tetra-

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tetra- combining form denoting four.